Heart|Lab Grown|IGI

1.00ct D IF Heart Lab Grown Diamond

VG • D/IF • IGI LG844678039

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG844678039

Diamond specifications and retailer prices

From $254 USD
As of October 30, 2026
Save $1,012 USD (80%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,266 USD at MOH London · As of October 25, 2026
View at MOH London

About this 1ct lab-grown heart diamond

This 1ct lab-grown heart sits in the classic one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG844678039 or 844678039. Listed at 16 retailers as of October 25, 2026, with prices from $254 to $1,266, a $1,012 spread on the same certified stone. MOH London lists it at $1,266. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
D
Color
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.3°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG844678039
Dimensions6.40 × 6.69 × 4.07 mm
L/W Ratio1.05
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.40 mm6.69 mm1.00 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG844678039
Side View
Table 64.0%Crown 39.3°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 60.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: $1,266 USD|Low: $254 USD|High: $1,384 USD|Avg: $630 USD|-8.5%
MOH London
Retailer 2
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Retailer 5
Retailer 6
Retailer 7
Retailer 8
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Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 16
October 31, 2026
Retailer 7$254 USD
Retailer 4$284 USD
Retailer 12$313 USD
Retailer 6$316 USD
Retailer 15$316 USD
Retailer 11$326 USD
Retailer 9$425 USD
Retailer 14$542 USD
Retailer 3$559 USD
Retailer 2$597 USD
Retailer 10$633 USD
Retailer 13$768 USD
Retailer 16$969 USD
Retailer 5$1,014 USD
Retailer 8$1,066 USD
MOH London$1,266 USD

14 data points across 16 retailers

16 retailers$254 USD to $1,266 USD

A
Cheapest Retailer
-
$254 USD
A
Retailer 2
-
$284 USD
View
Final sale: no returns
A
Retailer 3
-
$313 USD
View
A
Retailer 4
-
$316 USD
View
A
Retailer 5
-
$316 USD
View
A
Retailer 6
-
$326 USD
£257 GBP
View
A
Retailer 7
-
$425 USD
View
B+
Retailer 8
-
$542 USD
ZAR 8,758 ZAR
View
B+
Retailer 9
-
$559 USD
View
B+
Retailer 10
-
$597 USD
£470 GBP
View
B+
Retailer 11
-
$633 USD
View
B+
Retailer 12
-
$768 USD
A$1,181 AUD
View
B
Retailer 13
-
$969 USD
View
B
Retailer 14
-
$1,014 USD
View
B
Retailer 15
-
$1,066 USD
View
Most Expensive
B
MOH London
LG844678039 · Oct 25
$1,266 USD
£997 GBP
View
15 more retailers have this diamond
Prices start from $254 USDSave up to $1,012 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.00ct Heart
$254 USD